<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        body {
            background-color: black;
        }
        .main {
            padding-top: 300px;
            margin: 0 auto;
            width: 1200px;
            display: flex;
            justify-content: space-around;
            font-family: 'Courier New','Courier New', Courier, monospace;
        }

        .main div {
            display: inline-block;
            color: transparent;
        }

        span {
            font-size: 120px;
            animation: twinkle 4.6s linear infinite;
        }

        .main div:nth-child(1) span:nth-child(1) {
            animation-delay: 0s;
        }

        .main div:nth-child(2) span:nth-child(1) {
            animation-delay: .4s;
        }

        .main div:nth-child(2) span:nth-child(2) {
            animation-delay: .8s;
        }

        .main div:nth-child(2) span:nth-child(3) {
            animation-delay: 1.2s;
        }

        .main div:nth-child(2) span:nth-child(4) {
            animation-delay: 1.6s;
        }

        .main div:nth-child(3) span:nth-child(1) {
            animation-delay: 2s;
        }

        .main div:nth-child(3) span:nth-child(2) {
            animation-delay: 2.4s;
        }

        .main div:nth-child(3) span:nth-child(3) {
            animation-delay: 2.8s;
        }

        .main div:nth-child(4) span:nth-child(1) {
            animation-delay: 3.2s;
        }

        .main div:nth-child(4) span:nth-child(2) {
            animation-delay: 3.6s;
        }

        .main div:nth-child(4) span:nth-child(3) {
            animation-delay: 4.4s;
        }

        .main div:nth-child(4) span:nth-child(4) {
            animation-delay: 4.8s;
        }
        @keyframes twinkle {
            0% {
                color: transparent;
            }

            100%{
                color: aliceblue;
                /* text-shadow: 0 0 4px skyblue,
                0 0 10px skyblue,
                0 0 20px skyblue,
                0 0 30px skyblue,
                0 0 40px skyblue,
                0 0 50px skyblue,
                0 0 60px skyblue,
                0 0 70px skyblue,
                0 0 80px skyblue,
                0 0 90px skyblue,
                0 0 100px skyblue,
                0 0 110px skyblue,
                0 0 120px skyblue; */
                text-shadow: 0 0 4px red,
                0 0 10px pink,
                0 0 20px orange,
                0 0 30px green,
                0 0 40px blue,
                0 0 50px blueviolet;
            }
        }
    </style>
</head>
<body>

    <div class="main">
        <div>
            <span>I</span>
        </div>
        <div>
            <span>l</span>
            <span>o</span>
            <span>v</span>
            <span>e</span>
        </div>
        <div>
            <span>y</span>
            <span>o</span>
            <span>u</span>
        </div>
        <div>
            <span>3</span>
            <span>0</span>
            <span>0</span>
            <span>0</span>
        </div>
    </div>
    
</body>
</html>